化工学报Issue(12)：4799-4804,6.DOI:10.3969/j.issn.0438-1157.2014.12.021
磁性介孔硅胶负载碱性离子液体催化剂的制备与性能
Preparation and catalytic performance of magnetic mesoporous silica supported basic ionic liquids
摘要
Abstract
Magnetic mesoporous silica was modified with 3-mercaptopropyl trimethoxysilane, and then ionic liquid with different alkyl chains was immobilized on magnetic mesoporous silicavia free radical addition reaction between sulfydryl group and double bond. The catalysts were characterized with FTIR, XRD, elemental analysis and vibrating sample magnetometer. Finally, the catalytic activity of the catalyst was evaluated through catalytic transesterification reaction of glycerol trioleate with methanol. Ionic liquid loading, specific surface area and pore volume of the catalyst decreased with the increase of alkyl chain of ionic liquid. When the alkyl chain of ionic liquid was octyl group, dodecyl group or hexadecyl group, the yield of methyl oleate was higher than 95%, and after three cycles, the yield of methyl oleate was still higher than 90%.关键词
磁性介孔硅胶/离子液体/催化/酯交换反应/生物柴油Key words
magnetic mesoporous silica/ionic liquids/catalysis/transesterification/biodiesel分类
化学化工引用本文复制引用
张亚平,矫庆泽,吴芹,黎汉生..磁性介孔硅胶负载碱性离子液体催化剂的制备与性能[J].化工学报,2014,(12):4799-4804,6.基金项目
国家自然科学基金项目（20976013）。@@@@supported by the National Natural Science Foundation of China (20976013) （20976013）
